hair strengthening serum

Discover a wide range of hair strengthening serums at Square-One, your ultimate destination for all your hair care needs. Our selection includes top-quality serums that are specially formulated to nourish and strengthen your hair, leaving it looking healthier and more vibrant. Whether you're dealing with dry, damaged, or weak hair, our serums are designed to provide the essential nutrients and hydration your hair needs to regain its strength and vitality. Shop now and give your hair the care it deserves at Square-One.

Vegamour GRO Hair Serum for Thinning Hair 1 oz / 30 mL
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Vegamour

Vegamour GRO Hair Serum for Thinning Hair 1 oz / 30 mL

Current price: $86.50
From Sephora
The Ordinary Multi-Peptide Serum for Hair Density for Thicker, Fuller Looking Hair 2 oz/ 60 mL
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The Ordinary

The Ordinary Multi-Peptide Serum for Hair Density for Thicker, Fuller Looking Hair 2 oz/ 60 mL

Current price: $29.60
From Sephora
OUAI Hydrating Scalp Serum for Healthy, Fuller Looking Hair 2 oz / 60 mL
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OUAI

OUAI Hydrating Scalp Serum for Healthy, Fuller Looking Hair 2 oz / 60 mL

Current price: $80.00
From Sephora
Briogeo Destined for Density™ Peptide Hair Serum for Thicker, Fuller Hair 1.5 oz / 45 mL
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Briogeo

Briogeo Destined for Density™ Peptide Hair Serum for Thicker, Fuller Hair 1.5 oz / 45 mL

Current price: $77.00
From Sephora
Vegamour GRO+ Advanced Hair Serum for Severe Signs of Thinning 1 fl oz / 30 mL
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Vegamour

Vegamour GRO+ Advanced Hair Serum for Severe Signs of Thinning 1 fl oz / 30 mL

Current price: $106.00
From Sephora
Kérastase Nutritive Hydrating Split Ends Serum for Dry Hair 1.7 oz / 50 ml
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Kérastase

Kérastase Nutritive Hydrating Split Ends Serum for Dry Hair 1.7 oz / 50 ml

Current price: $84.00
From Sephora
Living Proof Scalp Care Density Serum for Thinning & Greying Hair 1.7 oz / 50 mL
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Living Proof

Living Proof Scalp Care Density Serum for Thinning & Greying Hair 1.7 oz / 50 mL

Current price: $86.50
From Sephora
BondiBoost Anti-Frizz Fly Away Wand Hair Serum with Aloe Vera and Caffeine 10 mL
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BondiBoost

BondiBoost Anti-Frizz Fly Away Wand Hair Serum with Aloe Vera and Caffeine 10 mL

Current price: $22.00
From Sephora
Kérastase Blond Absolu 2% Hyaluronic Acid Hair Serum 1.7 oz / 50 ml
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Kérastase

Kérastase Blond Absolu 2% Hyaluronic Acid Hair Serum 1.7 oz / 50 ml

Current price: $86.50
From Sephora
Hair Alchemy Fortifying Treatment Serum
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ORIBE

Hair Alchemy Fortifying Treatment Serum

Current price: $40.00
From Holt Renfrew
Oribe Hair Alchemy Strengthening Treatment Serum oz
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Oribe

Oribe Hair Alchemy Strengthening Treatment Serum oz

Current price: $43.50
From Sephora
Anti-Hair Fall Scalp Serum
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DR BARBARA STURM

Anti-Hair Fall Scalp Serum

Current price: $130.00
From Holt Renfrew
Kérastase Genesis Strengthening Serum for Hair and Scalp
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Kérastase

Kérastase Genesis Strengthening Serum for Hair and Scalp

Current price: $95.00
From Sephora
Hair Rituel Revitalizing Fortifying Serum for the Scalp
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SISLEY PARIS

Hair Rituel Revitalizing Fortifying Serum for the Scalp

Current price: $300.00
From Holt Renfrew
AAVRANI Mini Strengthening Hair Oil & Growth Serum Gift Set
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AAVRANI

AAVRANI Mini Strengthening Hair Oil & Growth Serum Gift Set

Current price: $51.00
From Sephora
Cryo-Recovery Depuffing Eye Serum
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CHARLOTTE TILBURY

Cryo-Recovery Depuffing Eye Serum

Current price: $95.00
From Holt Renfrew
Moroccanoil Mending Infusion Styling Hair Serum 2.5 oz/ 75 mL
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Moroccanoil

Moroccanoil Mending Infusion Styling Hair Serum 2.5 oz/ 75 mL

Current price: $43.50
From Sephora
Moroccanoil Intense Smoothing Frizz Control Hair Serum 1.7 oz / 50 ml
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Moroccanoil

Moroccanoil Intense Smoothing Frizz Control Hair Serum 1.7 oz / 50 ml

Current price: $43.50
From Sephora
Kérastase Resistance Strengthening Scalp & Hair Serum for Damaged Hair 1.7 oz/ 50 mL
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Kérastase

Kérastase Resistance Strengthening Scalp & Hair Serum for Damaged Hair 1.7 oz/ 50 mL

Current price: $86.50
From Sephora
Kérastase Nutritive 8H Magic Night Serum Hydrating Treatment for Dry Hair 3.04 oz / 90 ml
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Kérastase

Kérastase Nutritive 8H Magic Night Serum Hydrating Treatment for Dry Hair 3.04 oz / 90 ml

Current price: $95.00
From Sephora
Olaplex No. 9 Bond Protector Heat Protection & Frizz Reduction Nourishing Hair Serum 3 oz / 90 mL
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Olaplex

Olaplex No. 9 Bond Protector Heat Protection & Frizz Reduction Nourishing Hair Serum 3 oz / 90 mL

Current price: $41.00
From Sephora
Living Proof No Frizz Smooth Styling Serum null
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Living Proof

Living Proof No Frizz Smooth Styling Serum null

Current price: $49.00
From Sephora
Gisou Honey Infused Scalp Treatment Serum 3.4 oz/ 100 mL
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Gisou

Gisou Honey Infused Scalp Treatment Serum 3.4 oz/ 100 mL

Current price: $65.00
From Sephora
Restore + Shine Hair Serum
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GOOP

Restore + Shine Hair Serum

Current price: $78.00
From Holt Renfrew